<!DOCTYPE HTML>
<html>
<head>
  <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
  <title>SlickGrid example 4: Model</title>
  <link rel="stylesheet" href="../slick.grid.css" type="text/css"/>
  <link rel="stylesheet" href="../controls/slick.pager.css" type="text/css"/>
  <link rel="stylesheet" href="../css/smoothness/jquery-ui-1.8.16.custom.css" type="text/css"/>
  <link rel="stylesheet" href="examples.css" type="text/css"/>
  <link rel="stylesheet" href="../controls/slick.columnpicker.css" type="text/css"/>
  <style>
    .cell-title {
      font-weight: bold;
    }

    .cell-effort-driven {
      text-align: center;
    }

    .cell-selection {
      border-right-color: silver;
      border-right-style: solid;
      background: #f5f5f5;
      color: gray;
      text-align: right;
      font-size: 10px;
    }

    .slick-row.selected .cell-selection {
      background-color: transparent; /* show default selected row background */
    }
  </style>
</head>
<body>
<div style="position:relative">
  <div style="width:600px;">
    <div class="grid-header" style="width:100%">
      <label>SlickGrid</label>
      <span style="float:right" class="ui-icon ui-icon-search" title="Toggle search panel"
            onclick="toggleFilterRow()"></span>
    </div>
    <div id="myGrid" style="width:100%;height:500px;"></div>
    <div id="pager" style="width:100%;height:20px;"></div>
  </div>

  <div class="options-panel">
    <b>Search:</b>
    <hr/>
    <div style="padding:6px;">
      <label style="width:200px;float:left">Show tasks with % at least: </label>

      <div style="padding:2px;">
        <div style="width:100px;display:inline-block;" id="pcSlider"></div>
      </div>
      <br/>
      <label style="width:200px;float:left">And title including:</label>
      <input type=text id="txtSearch" style="width:100px;">
      <br/><br/>
      <button id="btnSelectRows">Select first 10 rows</button>

      <br/>

      <h2>Demonstrates:</h2>
      <ul>
        <li>a filtered Model (DataView) as a data source instead of a simple array</li>
        <li>grid reacting to model events (onRowCountChanged, onRowsChanged)</li>
        <li>
          <b>FAST</b> DataView recalculation and <b>real-time</b> grid updating in response to data changes.<br/>
          The grid holds <b>50'000</b> rows, yet you are able to sort, filter, scroll, navigate and edit as if it had 50
          rows.
        </li>
        <li>adding new rows, bidirectional sorting</li>
        <li>column options: cannotTriggerInsert</li>
        <li>events: onCellChange, onAddNewRow, onKeyDown, onSelectedRowsChanged, onSort</li>
        <li><font color=red>NOTE:</font> all filters are immediately applied to new/edited rows</li>
        <li>Handling row selection against model changes.</li>
        <li>Paging.</li>
        <li>inline filter panel</li>
      </ul>
    </div>
  </div>
</div>

<div id="inlineFilterPanel" style="display:none;background:#dddddd;padding:3px;color:black;">
  Show tasks with title including <input type="text" id="txtSearch2">
  and % at least &nbsp;
  <div style="width:100px;display:inline-block;" id="pcSlider2"></div>
</div>

<script src="../lib/firebugx.js"></script>

<script src="../lib/jquery-1.7.min.js"></script>
<script src="../lib/jquery-ui-1.8.16.custom.min.js"></script>
<script src="../lib/jquery.event.drag-2.0.min.js"></script>

<script src="../slick.core.js"></script>
<script src="../slick.formatters.js"></script>
<script src="../slick.editors.js"></script>
<script src="../plugins/slick.rowselectionmodel.js"></script>
<script src="../slick.grid.js"></script>
<script src="../slick.dataview.js"></script>
<script src="../controls/slick.pager.js"></script>
<script src="../controls/slick.columnpicker.js"></script>

<script>
var dataView;
var grid;
var data = [];
var columns = [
  {id: "sel", name: "#", field: "num", behavior: "select", cssClass: "cell-selection", width: 40, cannotTriggerInsert: true, resizable: false, selectable: false },
  {id: "title", name: "Title", field: "title", width: 120, minWidth: 120, cssClass: "cell-title", editor: Slick.Editors.Text, validator: requiredFieldValidator, sortable: true},
  {id: "duration", name: "Duration", field: "duration", editor: Slick.Editors.Text, sortable: true},
  {id: "%", name: "% Complete", field: "percentComplete", width: 80, resizable: false, formatter: Slick.Formatters.PercentCompleteBar, editor: Slick.Editors.PercentComplete, sortable: true},
  {id: "start", name: "Start", field: "start", minWidth: 60, editor: Slick.Editors.Date, sortable: true},
  {id: "finish", name: "Finish", field: "finish", minWidth: 60, editor: Slick.Editors.Date, sortable: true},
  {id: "effort-driven", name: "Effort Driven", width: 80, minWidth: 20, maxWidth: 80, cssClass: "cell-effort-driven", field: "effortDriven", formatter: Slick.Formatters.Checkmark, editor: Slick.Editors.Checkbox, cannotTriggerInsert: true, sortable: true}
];

var options = {
  editable: true,
  enableAddRow: true,
  enableCellNavigation: true,
  asyncEditorLoading: true,
  forceFitColumns: false,
  topPanelHeight: 25
};

var sortcol = "title";
var sortdir = 1;
var percentCompleteThreshold = 0;
var searchString = "";

function requiredFieldValidator(value) {
  if (value == null || value == undefined || !value.length) {
    return {valid: false, msg: "This is a required field"};
  }
  else {
    return {valid: true, msg: null};
  }
}

function myFilter(item, args) {
  if (item["percentComplete"] < args.percentCompleteThreshold) {
    return false;
  }

  if (args.searchString != "" && item["title"].indexOf(args.searchString) == -1) {
    return false;
  }

  return true;
}

function percentCompleteSort(a, b) {
  return a["percentComplete"] - b["percentComplete"];
}

function comparer(a, b) {
  var x = a[sortcol], y = b[sortcol];
  return (x == y ? 0 : (x > y ? 1 : -1));
}

function toggleFilterRow() {
  if ($(grid.getTopPanel()).is(":visible")) {
    grid.hideTopPanel();
  } else {
    grid.showTopPanel();
  }
}


$(".grid-header .ui-icon")
        .addClass("ui-state-default ui-corner-all")
        .mouseover(function (e) {
          $(e.target).addClass("ui-state-hover")
        })
        .mouseout(function (e) {
          $(e.target).removeClass("ui-state-hover")
        });

$(function () {
  // prepare the data
  for (var i = 0; i < 50000; i++) {
    var d = (data[i] = {});

    d["id"] = "id_" + i;
    d["num"] = i;
    d["title"] = "Task " + i;
    d["duration"] = "5 days";
    d["percentComplete"] = Math.round(Math.random() * 100);
    d["start"] = "01/01/2009";
    d["finish"] = "01/05/2009";
    d["effortDriven"] = (i % 5 == 0);
  }


  dataView = new Slick.Data.DataView({ inlineFilters: true });
  grid = new Slick.Grid("#myGrid", dataView, columns, options);
  grid.setSelectionModel(new Slick.RowSelectionModel());

  var pager = new Slick.Controls.Pager(dataView, grid, $("#pager"));
  var columnpicker = new Slick.Controls.ColumnPicker(columns, grid, options);


  // move the filter panel defined in a hidden div into grid top panel
  $("#inlineFilterPanel")
      .appendTo(grid.getTopPanel())
      .show();

  grid.onCellChange.subscribe(function (e, args) {
    dataView.updateItem(args.item.id, args.item);
  });

  grid.onAddNewRow.subscribe(function (e, args) {
    var item = {"num": data.length, "id": "new_" + (Math.round(Math.random() * 10000)), "title": "New task", "duration": "1 day", "percentComplete": 0, "start": "01/01/2009", "finish": "01/01/2009", "effortDriven": false};
    $.extend(item, args.item);
    dataView.addItem(item);
  });

  grid.onKeyDown.subscribe(function (e) {
    // select all rows on ctrl-a
    if (e.which != 65 || !e.ctrlKey) {
      return false;
    }

    var rows = [];
    for (var i = 0; i < dataView.getLength(); i++) {
      rows.push(i);
    }

    grid.setSelectedRows(rows);
    e.preventDefault();
  });

  grid.onSort.subscribe(function (e, args) {
    sortdir = args.sortAsc ? 1 : -1;
    sortcol = args.sortCol.field;

    if ($.browser.msie && $.browser.version <= 8) {
      // using temporary Object.prototype.toString override
      // more limited and does lexicographic sort only by default, but can be much faster

      var percentCompleteValueFn = function () {
        var val = this["percentComplete"];
        if (val < 10) {
          return "00" + val;
        } else if (val < 100) {
          return "0" + val;
        } else {
          return val;
        }
      };

      // use numeric sort of % and lexicographic for everything else
      dataView.fastSort((sortcol == "percentComplete") ? percentCompleteValueFn : sortcol, args.sortAsc);
    } else {
      // using native sort with comparer
      // preferred method but can be very slow in IE with huge datasets
      dataView.sort(comparer, args.sortAsc);
    }
  });

  // wire up model events to drive the grid
  dataView.onRowCountChanged.subscribe(function (e, args) {
    grid.updateRowCount();
    grid.render();
  });

  dataView.onRowsChanged.subscribe(function (e, args) {
    grid.invalidateRows(args.rows);
    grid.render();
  });

  dataView.onPagingInfoChanged.subscribe(function (e, pagingInfo) {
    var isLastPage = pagingInfo.pageSize * (pagingInfo.pageNum + 1) - 1 >= pagingInfo.totalRows;
    var enableAddRow = isLastPage || pagingInfo.pageSize == 0;
    var options = grid.getOptions();

    if (options.enableAddRow != enableAddRow) {
      grid.setOptions({enableAddRow: enableAddRow});
    }
  });


  var h_runfilters = null;

  // wire up the slider to apply the filter to the model
  $("#pcSlider,#pcSlider2").slider({
    "range": "min",
    "slide": function (event, ui) {
      Slick.GlobalEditorLock.cancelCurrentEdit();

      if (percentCompleteThreshold != ui.value) {
        window.clearTimeout(h_runfilters);
        h_runfilters = window.setTimeout(updateFilter, 10);
        percentCompleteThreshold = ui.value;
      }
    }
  });


  // wire up the search textbox to apply the filter to the model
  $("#txtSearch,#txtSearch2").keyup(function (e) {
    Slick.GlobalEditorLock.cancelCurrentEdit();

    // clear on Esc
    if (e.which == 27) {
      this.value = "";
    }

    searchString = this.value;
    updateFilter();
  });

  function updateFilter() {
    dataView.setFilterArgs({
      percentCompleteThreshold: percentCompleteThreshold,
      searchString: searchString
    });
    dataView.refresh();
  }

  $("#btnSelectRows").click(function () {
    if (!Slick.GlobalEditorLock.commitCurrentEdit()) {
      return;
    }

    var rows = [];
    for (var i = 0; i < 10 && i < dataView.getLength(); i++) {
      rows.push(i);
    }

    grid.setSelectedRows(rows);
  });


  // initialize the model after all the events have been hooked up
  dataView.beginUpdate();
  dataView.setItems(data);
  dataView.setFilterArgs({
    percentCompleteThreshold: percentCompleteThreshold,
    searchString: searchString
  });
  dataView.setFilter(myFilter);
  dataView.endUpdate();

  // if you don't want the items that are not visible (due to being filtered out
  // or being on a different page) to stay selected, pass 'false' to the second arg
  dataView.syncGridSelection(grid, true);

  $("#gridContainer").resizable();
})
</script>
</body>
</html>
